<template>
  <div class="icons">
    <swiper :options="swiperOption">
      <swiper-slide v-for="page of pages" :key="page.index">
        <div class="icon"  v-for="icon of page" :key="icon.id">
          <div class="icon-img">
            <img class="icon-img-content" :src="icon.imgUrl" :alt="icon.desc">
          </div>
          <p class="icon-desc">{{icon.desc}}</p>
        </div>
      </swiper-slide>
    </swiper>
  </div>
</template>
<script>
export default {
  name: 'HomeIcons',
  props: {
    list: Array
  },
  data () {
    return {
      swiperOption: {
        autoplay: false
      }
    }
  },
  computed: {
    pages () {
      const pages = []
      this.list.forEach((item, index) => {
        const page = Math.floor(index / 8)
        if (!pages[page]) {
          pages[page] = []
        }
        pages[page].push(item)
      })
      return pages
    }
  }
}
</script>
<style lang="stylus" scoped>
@import '~styles/varibles.styl'
@import '~styles/mixins.styl'
.icons {
  margin-top: .1rem
}
.icons >>> .swiper-container{
  height: 0
  padding-bottom: 50%
  .icon {
    position: relative
    overflow: hidden
    float: left
    width: 25%
    height: 0
    padding-bottom: 25%
    .icon-img {
      position: absolute
      top:0
      left:0
      right:0
      bottom: .44rem
      box-sizing: border-box
      padding: .1rem
      .icon-img-content {
        display: block;
        margin: 0 auto;
        height: 100%
      }
    }
    .icon-desc {
      position: absolute
      left: 0
      right: 0
      bottom: 0
      height: .44rem
      line-height: .44rem
      text-align: center
      color: $darkTextColor
      ellipsis()
    }
  }
}
</style>
